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// vim: set tabstop=4 shiftwidth=4 noexpandtab
/*
Gwenview - A simple image viewer for KDE
Copyright 2000-2004 Aur�ien G�eau
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef IMAGEVIEWTOOLS_H
#define IMAGEVIEWTOOLS_H
// Qt
#include <qcursor.h>
// Local
#include "imageview.h"
namespace Gwenview {
class ImageView::ToolBase {
protected:
ImageView* mView;
public:
ToolBase(ImageView* view);
virtual ~ToolBase();
virtual void mouseMoveEvent(QMouseEvent*);
virtual void leftButtonPressEvent(QMouseEvent*);
virtual void leftButtonReleaseEvent(QMouseEvent*);
virtual void midButtonReleaseEvent(QMouseEvent*);
virtual void rightButtonPressEvent(QMouseEvent* event);
virtual void rightButtonReleaseEvent(QMouseEvent*);
virtual void wheelEvent(QWheelEvent* event);
virtual void updateCursor();
/**
* Return a hint about the use of the tool
*/
virtual QString hint() const=0;
};
class ImageView::ZoomTool : public ImageView::ToolBase {
private:
QCursor mZoomCursor;
void zoomTo(const QPoint& pos, bool in);
public:
ZoomTool(ImageView* view);
void leftButtonReleaseEvent(QMouseEvent* event);
void wheelEvent(QWheelEvent* event);
void rightButtonPressEvent(QMouseEvent*);
void rightButtonReleaseEvent(QMouseEvent* event);
void updateCursor();
virtual QString hint() const;
};
class ImageView::ScrollTool : public ImageView::ToolBase {
int mScrollStartX,mScrollStartY;
bool mDragStarted;
public:
ScrollTool(ImageView* view);
void leftButtonPressEvent(QMouseEvent* event);
void mouseMoveEvent(QMouseEvent* event);
void leftButtonReleaseEvent(QMouseEvent*);
void wheelEvent(QWheelEvent* event);
void updateCursor();
virtual QString hint() const;
};
} // namespace
#endif /* IMAGEVIEWTOOLS_H */
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